Re: [Qemu-devel] ask about simulating cluster using Qemu

[Fabrice Bellard]

Mulyadi Santosa wrote:
> Hello all
>
> I have been following Qemu's development for about 3-4 months and I must say :
> TOTALLY AWESOME !!
>
> OK, to the point, i want to ask several things:
> 1. I have plan to simulate openMosix cluster....just 2 node for start. 1 node 
> is my real PC, and the other is Qemu emulated host. AFAIK, when I try to load 
> openMosix patched kernel (using 0.5.2), it got some errors on initial kernel 
> loading......sorry I lost the exact message
>
> What should I do to solve it, at least clues to debug it....?
>
> 2. should I use tmpfs mounted on /tmp to accelerate Qemu? User Mode Linux 
> suggest to use tmpfs....does Qemu use same method?

Yes, but it matters only for qemu-fast.

> 3. Is there any automation tools for generating disk image, more or less 
> similar with UMLBuilder for UML? So far, for creating one, I put Debian Woody 
> CDROM, boot it inside Qemu and install it into pre-made empty file.....

No. But you can use tools from other projects.

> 4. at certain interval, i got this message when running Debian:
> "probable hardware bug: restoring chip configuration
> probable hardware bug: clock    timer configuration lost - probably  a VIA686a
> probable hardware bug: restoring  chip configuration"

It is a QEMU bug :-)

Fabrice.